Asymptotic Error Rate Approximation of Amplify-and-Forward Cooperative Diversity Network with Relay Selection

被引：0

作者：

Choi, Minhwan ^{[1
]}

Nam, Haewoon ^{[1
]}

Lee, Hoojin ^{[2
]}

机构：

[1] Hanyang Univ, Dept Elect & Commun Engn, Ansan 426791, South Korea

[2] Hansung Univ, Dept Informat & Commun Engn, Seoul 136792, South Korea

来源：

2015 INTERNATIONAL CONFERENCE ON ICT CONVERGENCE (ICTC) | 2015年

关键词：

symbol error rate (SER); cooperative diversity; amplify-and-forward (AF); PERFORMANCE ANALYSIS; WIRELESS NETWORKS;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we present simple approximate closed-form formulas for the average symbol error rate (SER) of M-ary phase shift keying (M-PSK) and M-ary quadrature amplitude modulation (M-QAM) using only basic mathematical technique in the amplify-and-forward (AF) cooperative system with a relay selection over independent and identically distributed (i.i.d.) Rayleigh fading channels. Through some numerical results obtained from the derived formulas, we can easily observe the achievability of the selection diversity gain with a different number of relays. In addition, by comparing the error rate curves from the derived simple high signal-to-noise ratio (SNR) approximate SER formulas with Monte Carlo simulation results as well as the existing relatively complicated lower-bound expressions, we can clearly verify that the analytical results from the proposed formulas are more similar to the Monte-Carlo results than those of the conventional complex ones in sufficiently wide SNR range and thus it is possible to more efficiently evaluate the advantages of relay selection in the cooperative systems.

引用

页码：1336 / 1341

页数：6

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